CONSOLIDATED FINANCIAL STATEMENT DETAILS - Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash paid (received) during the year for:
Interest	$ 96,730	$ 90,485	$ 92,461
Income tax payments	39,515	45,154	35,598
Income tax refunds	$ (5,436)	$ (33,698)	$ (42,025)